A2DP Wireless Bluetooth Speakers
with a pocket PC phone
I used a broken pair or Logitech wireless stereo headsets to create my speakers with A2DP.
I really hope that manufactures of consumer electronics speed up their development and their time to market with new products. It seems they think "we are not ready to embrace really cool technology" They might think it’s too complicated for the average user, or its just time consuming and very expensive to develop new stuff, what ever the reason, I just want to be able to use what I know is feasable to make happen...
One example is Bluetooth, and Bluetooth is
perhaps one of the least understood technologies out there today. Most
people think it’s something in a cell phone for a headset, and it’s
much more than just that. The best part of Bluetooth is its profiles
and one of my favorite profiles is the audio profiles AKA: AVRCP, and
More bluetooth info
will talk about A2DP today and show you a hack I did to create my very
own Bluetooth speakers with A2DP and use a pocket PC phone to stream
high quality stereo sound to my speakers.
A2DP is my preference to be the coolest profile within Bluetooth, why have manufactures not caught on is beyond me. I modified my pocket PC's registry to enable the A2DP profile, and added a driver. The registry hack can be found here
works with the HTC wizard, ( K-Jam, T-mobile, etc, just update to the latest ROM which has the latest AKU2 ROM from Microsoft, with push email)
See the work in progress here...
1) Find speakers to destroy, that are amplified like ipod speakers MP3 etc., I used 50$ CA powered speakers from Staples
2) Make sure they have their own power AA or AAA batteries.
3) Take them apart and locate the wire lead to the speakers on the logic board of the speakers
4) Take your destroyed (but still functional) A2DP headphones. Logitech, ipaq, blue ant etc, and carefully take them apart, on one earpiece is the Bluetooth logic board, on the other ear piece is the battery back, the leads end up on the logic board anyway, and will be rechargeable and the battery lasts a very long time.
5) Drill a hole in back of the casing of the speakers
6) Carefully remove the speakers from the Logitech headphones and run new wires to the logic board to accommodate the connections to the logic board on the speakers
7) If you want volume control and amplification to the speakers locate the volume control on the logic board speakers and solder the 2 positive leads of the Logitech to the headphones positive speaker leads
8) Locate the negative common ground on the speaker’s logic board and solder that to the negative speaker lead of the Logitech
9) Solder the battery connections back to the Logitech board
10) Hot glue everything leave a space to be able to charge the Logitech headphone unit, remove the grills on the speakers to make it look less dinky.
Enjoy Bluetooth premium wireless music form any A2DP device.
I will update to better looking speakers just wanted to see if this would work, will hunt down Altech Lansing speakers etc, or something really nice to embed everything in the speaker box next time so it looks like a real finished product. I
do do not have the budget to make a really cool industrial design, but you get the picture...